Improvement in cultivators



D. S. WAGNER.

Gultivator.

No. 2 o1,|36. f Patented March'12,1878.

www m AN PETERS, FHCTO-LITHOGPHER, WASHINGTON. Dv Cy UNITED STATESPATENT OEEIcE.

DAVID S. WAGNER, CF CARLISLE, PENNSYLVANIA.

IMPROVEMENTIN cuLTlvAToRs.

Speciicationforming part of Letters Patent No. 201,136, dated March 12,1878; application iiled January 30, 1878.

To all whom it may concern: p,

Be it known that I, DAVID S. NAGNER, of Carlisle, inthe county ofCumberland and State of Pennsylvania, have invented certain new anduseful Improvements in Cultivators; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform part of this specification.

My invention relates to an improvement in cultivators; and it consistsin the arrangement and combination of parts whereby the machine can beguided by the handles which control the gangs or shovels, and wherebythe shovelsl are made to lrevolve half around whenever they strike anobstruction, and thus prevent them from breaking, as will be more fullydescribed hereinafter. f

The accompanying drawings represent my invention.

a represents the axle; b, the tongue, and c the driving wheels. rIhespindles d, upon which these driving-wheels turn, are pivoted to theunder side of the axle, and have their inner ends bent at rightangles,and extending a suitable distance beyond the rear side of theaxle. These rear ends e are connected together by a suitableconnecting-rod, f, which extends clear across the machine, and which hasthe loops g projecting downward and forward from its under side. Throughthese loops pass the handles ZL, to vwhich the gangs or cultivators areattached, and which handles have their front ends projecting forward andbearing upon the tops of the rods z', to which the cultivator-beams jare fastened.

By pivoting the spindles to the under side of the axle and connectingtheir rear ends together by a connecting-rod, it is evident that thespindles carrying the wheels upon them will be given a free play througha portion of a circle, the centers of which are the pivots upon whichthe spindles are fastened. y

Vhen the rear ends of either one or both of the handles are moved to oneside, the front ends, catching in the loops that project from the underside of the connecting-rod, cause the connecting-rod to move in anopposite di rection, and as the rod moves it draws the spindles around,so as to move the wheels around through a portion of a circle. By thusmoving the wheels the driver is enabled to manage the gangs orcultivators, and control the direction ofthe machine at the same time,without any additional eort on his part.

Suspended from lthe front side of the axle bythe hanger k, and braced inposition by the braces Z, are the rods or bars c, to which thecultivator-beams j are secured. These beams extend backward, and havetheir rear ends o turned upward, as shown.` The standards m are pivotedto `the rear ends of the beam just at that point where it begins to moveupward, and one ofthe standards has its end bent so as to projectdownward at a slight rearward inclination, and thus form the shield n.

In between the two standards, just to the i rear of where they arepivoted to the beam, is

, secured, by means ofthe set-screw l,the slotted hooked stop p, whichregulates the distance which the standards shall move upward in casevthey should st rike a slight obstruction. The upper end of this stopp,bein g hooked catches over the upwardly-turned end o of the beam, andthis prevents the standards from rising either too far upward ordropping too low toward the ground. By adjusting this stop up and down,the distance which the standards can rise upward when they strike anobstruction, or the depth which the shovels shall cut into the ground,may be readily controlled.

Instead of there being but a single standard and a shovel attacheddirectly to it, I use two standards,`m, between the lower ends of which'is placed the revolving shovel q. The body of this shovel is made ofcommon castiron, and to each end, turned in opposite diorotherobstructiomwhich would have a tendency toA break. the shovelor stop theteam.

These. spring-catches being regulated so as toV give way at a certainVamount of pressure as soon as this pressure is reached, the catchesopen outward and allow the shovel-point to Y give backward zuntil therod s, Vwhich projects Voutward from Vthe side of the body of theshovel, strikes the ground,.wheu the forward motion ofthe'team willcause the shovel to Y continue turningaround until Vthe opposite Y Yypoint Vcatches in the ground, when it Vat -once takes the place of thepoint which caught By means of these point to point.V

Secured to the Vshield n is a rubber or other spring, t, which isclamped between the plate u Vand the'adj Listing-nut, Vand to each endof the plate c is secured `a rod, at, which extends backward, and Vhasits other VendV fastened to the sprin g-catch which rholds the shovelinV po- Y. sition. By'regulating the pressure .of this Vspring uponV the:rods a, VtheV .catchV Vmay Vbe made to act with any desired amount otpressure upon the point'ot' the shovel that is in the Y ground.'

`By yhaving the shovels Vthus. revolve, is evidentthat there is nodanger of one of the points of the shovels being broken; that theVstoppage of the team will never occur Vby the Y shovels catchingagainst anV obstruction ;'A that the Vshovels instantly Vreadiustthemselves; that there is little-or no ground skipped When one or moreof the shovels strike an obstruction; and that the driver need not carrya number of break-pins or other devices along with him, so as to beconstantly stopping the team and adjusting the shovels as fast as theystrike against a stone or other substance which interferes with theiraction.

Where the ground is entirely free from obstructions of all kinds, andone set of points or shovels have become dull, the dull set may beremoved from the body and taken to a blacksmith-shop to be 'sharpenedWhile the other is in use.

Upon the top of each handle is placed a small thumb-lever, 2, which isconnected by f the rod V3 with a ratchet bar or rod, 4, by

onlyI necessary to loosen the Vclamp-screw Vwhich passes through thehandle, andV then, .by means ofthe slots made in the upwardly-'1V turnedends o of the beams, the shovels may be adjusted Vatwill. Y

VWhen it is desired, shovels or plows of anyV suitable description maybe applied tothe Y sides of the beams Where Vthe corn-shields 5 are-secured, thus making a Vcultivator with Y eight double-pointed shovels,which will Wear twice Y as long Yas single pointed ones, and `willcultivate thoroughly a width of forty-eight Y inches.

VThe front en'dsoi the beams j are Vfastened to the rods i by means ofsetscrewsso YthatV 11 thefbeamscanbe adjusted back andV forthV at Y'will for the purpose of regulatingthe distance Y between the shovels.

1 It will be noticed Vthat the Weight of Vthe standards shall rest ontheV slotted hookedVV stop p where there` are no obstructions ;V butWhenone shovel strikes a Y slightV obstruction itrises, Vbeam and all,Vexcept the VotherV shovels, which Vare allowed to keeptheir depth Yuntil the hook-stopV VpcatchesV VoverV the up- Y turned endo, should it`rise soV high.

dou-ble standards m, double-poilitedV shovel g,

'rodsy s, catches Vr, rods. a, and spring t, sub.-V

stantially as shown.

2. In a cultivator, a doublepointed shovel, q,rprovided with the rods s,in combination with the spring-catches r and double standards m, theparts being combined to operate in surcha manner that the point of theshovel remains Iin the earth until it strikes an obstruction, When itautomatically revolves half- ,Way around, and at once enters the earthwith its other point, substantially as described. 3. The combination ofthe connecting-rod f, pivoted spindles e, loops g, levers h, rods t',and connecting devices for uniting the beams j to the handles,substantially as set forth.

,4. The combination of the revolving shovel, catches to holdit inposition, connecting-rods, and spring, substantially as shown.

5. The adjustable stop p, in combination with the standards and theturnednp end o of the beam, substantially as described.

In testimony thattI claim the foregoing I have hereunto set my hand this19th day of" Witnesses E. B. LEONARD, T. H. ltAMsEY.

Iam aware that a revolving coverer'is not i new, and this I disclaim'.'Y Y Y Having thus described my invention, I` claimil, In Va.cultivator, the Vcombinatio'n'of theV

